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Tag: "pick" at biology news

Sensors, a smart dose of medicine for cancer treatment

...modules containing 1069 individual diodes that can pick up incoming radiation. "These diodes need to be ...is given the prescribed dose and the diode sensors pick up the dose actually delivered. "The two modular 2D diode arrays are placed in orthogonal positions ...

Genetic testing still smart choice, despite uncertainties

...ic diagnosis, the method many practitioners use to pick the healthiest embryos during IVF, UF researchers set out to study the procedure. Their work, described during a recent meeting of the American Society of Reproductive Medicine, reveals the technique is actually highly reliable. But because there is ...

Missing fossil link 'Dallasaurus' found

...vages of other sea life, such as sharks, who would pick away at carcasses for food. Because of their mostly shallow sea and seaside habitats, the remains of early mosasaurs are even more rare and much harder to find. But in the last two decades, many new discoveries and significant advances have been mad...

Picky female frogs drive evolution of new species in less than 8,000 years

...ssure for the female choice to evolve so that they pick the right males," Moritz said. This so-called reinforcement has been controversial since the time of Charles Darwin, with some biologists claiming that it requires too many steps for evolution to get it right. "Some have argued that it's just too c...

U-M scientists discover identifying markers for primitive blood-forming stem cells

...ombined. It reduces the skill and time required to pick out a hematopoietic stem cell and makes the process simpler and less labor intensive." "Many of the current markers we use to purify HSCs are expressed as a gradient from high to low across the hematopoietic cell hierarchy," says Omer H. Yilmaz, co-...

Retina adapts to seek the unexpected, ignore the commonplace

...enhancing the ability of these receptive fields to pick out unusual features." While manipulating the visual scenes faced by salamanders and rabbits, Meister and colleagues recorded neural signals from the animals' retinal ganglion cells, testing whether adaptation to a different environment altered the ...

Researchers Create DNA-Based Sensors for Nano-Tongues and Nano-Noses

...e nanotube," Johnson said. "The nanotube will then pick up on that change, turning it into an electric signal that can then be reported." According to Johnson, an array of 100 sensors with different response characteristics and an appropriate pattern recognition program would be able to identify a weak k...

Toxic flood lifts lid on common urban pollution problem

...tive at capturing pavement contaminants. "If you pick up this potentially toxic material before it gets into the hydrological cycle, it is far more economical than if you try to take it out of the water after the fact," he said. ...

Genetic discovery could lead to drought-resistant plants

...hey must open their stomata at some point, both to pick up carbon dioxide needed for photosynthesis and to release oxygen back into the atmosphere. This new information will be important to plant breeders looking to improve crop resistance to drought, as well as to those seeking to understand plants' evol...

New tool reveals secrets of migrating cells

... just the beginning. The human eye and brain can't pick out patterns of movement easily, so statistical techniques are needed to identify cells with different patterns of movement. As an immunologist, Robey focuses on the lives of T cells produced in the thymus and distributed via the bloodstream to the ...

Where Bacteria Get Their Genes

...gene transfer, is the way many pathogenic bacteria pick up antibiotic resistance or become more virulent. "To maintain effective treatments and develop new antibiotics, it's important to monitor the rates and patterns of lateral gene transfer," said team member Howard Ochman, a UA professor of biochemist...

Team Invents Device For Weighing Individual Molecules

...es to make the measurement. You need to be able to pick out the 'needle' from the 'haystack,' and that's hard to do, among other reasons because 95 percent of the proteins in the blood have nothing to do with cancer." The new method might ultimately permit the creation of microchips, each possessing arra...

Young Blood Revives Aging Muscles, Stanford Researchers Find

...different types of cells. "Another approach is to pick factors that are good candidates and see if any of them or some combination recapitulate the effect of the younger blood," Rando said. His group is now looking for likely targets. He said that for some degenerative diseases such as Alzheimer's or mus...

Where bacteria get their genes

...gene transfer, is the way many pathogenic bacteria pick up antibiotic resistance or become more virulent. "To maintain effective treatments and develop new antibiotics, it's important to monitor the rates and patterns of lateral gene transfer," said team member Howard Ochman, a UA professor of biochemist...

Test for early detection of prostate cancer shows promise

...the EPCA test, to make it more sensitive so it can pick up even the smallest traces of the marker, and to verify its usefulness for detecting prostate cancer in a larger sample of patients, said Getzenberg. Prostate cancer is the most common type of cancer found in American men. The American Cancer Socie...

Mayo Clinic Researchers Create 'Obedient Virus'; First Step To Use Measles Virus Against Cancer

...receptors. And they also show that we can take our pick as to what new receptor we target and send the virus after it." How They Did It Using bioengineering techniques, the team reprogrammed the measles virus to seek a cancer cell to bind to instead of its natural binding partner. Then they invented a "...

New insight into people who 'see' colors in letters and numbers

...ound that synesthetic color helped the synesthetes pick out specific numbers or letters in a crowded display. The researchers found that the synesthetic colors really did help the synesthetes distinguish the shapes or graphemes, compared to normal control subjects who were tested on the same patterns. Ho...

Researchers reveal the infectious impact of salmon farms on wild salmon

...for alarm: once the young salmon pass the farm and pick up the sea lice, the migrating school becomes a moving cloud of contagions. Sea lice larvae mature and reproduce on the seaward salmon with each louse producing 300-800 eggs. This second round of lice larvae can re-infect the fish in the school and c...

Scientists seek answers on what activates deadly anthrax spores

...vide new details on how anthrax develops, but also pick out structural vulnerabilities that are key to designing new therapeutic agents to prevent anthrax. Interest in determining how to stop anthrax remains high, not only after the 2001 attacks through the mail that resulted in 18 cases and five deaths,...

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